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Finding the Fourth Proportional to 146,130.80, 218,758.80 and 130,384.40

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Solution

The fourth proportional to 146,130.80, 218,758.80 and 130,384.40 is: 195,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,130.80 : 218,758.80 = 130,384.40 : x
  2. Step 2: Convert to fraction form
    146,130.80/218,758.80 = 130,384.40/x
  3. Step 3: Cross multiply
    146,130.80x = 218,758.80 × 130,384.40
  4. Step 4: Simplify right side
    146,130.80x = 28,522,734,882.72
  5. Step 5: Solve for x
    x = 28,522,734,882.72/146,130.80
  6. Step 6: Final answer
    x = 195,186.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.